If you are navigating on a tablet or phone to that level fo accuracy, you might
Totally.
My concern is based on situations where it took ages for my previous Galaxy note to acquire enough satellites for a position and to keep them.
At one point i decided to test it, using "GPS status and toolbox" against my old Garmin. The handheld showed strong signals where the Galaxy would show a weak one and occasionally lose lock on satellites in the same.location.
It could be suddenly off by as much as 400ft and occasionally, but rarely, miles. Most other times it was perfectly fine.
Turning the GPS on the phone, on and off, would sometimes seem to solve it. I assume on startup it was downloading new almanac data from the satellites, so maybe it was getting corrupted and that was why it seemed to help ?
It did consistently show a weaker signal that day compared to the old Garmin.
It's a data signal so if it gets the data it's obviously gonna do the same calculations as any other GPS.. But in this case the signal was far from reliable and evidently borderline.
Not something i wanted to count on. Not sure it it was some issue with the hardware drivers or the actual hardware.
Edit: i even removed the protective phone case, thinking it may have some metal particles and weakening the reception.
GPS reliability clearly wasnt a concern when they made it.
My current unit has mostly worked well, Originally it would occasionally drop into power save mode and disable gps, even when always plugged in. A 3rd party battery app solved that by effectively disabling the power save function.
Since i started using the nmea gps data from the lowrance 4 it has been fine.
Who knows.
